The advisory recommended that American visitors to Cuba should avoid untreated water, street food and under- or uncooked dishes such as ceviche, the Associated Press reported.

"We urge you to follow public health recommendations and guidelines, such as safe food and water precautions and frequent hand washing to help prevent cholera infection," the diplomatic mission said in a statement published online Tuesday.

Most U.S. citizens are prevented from vacationing on the island nation due to the 51-year-old embargo against Cuba; however, hundreds of thousands of Cuban-Americans, and an increasing number of others, are able to legally visit Cuba, which is located just 90 miles off the Floridian coast.

The Pan American Health Organization has reported five confirmed cases of cholera among tourists to Cuba in July and August. The vacationers included one Italian, two Venezuelans and two Chileans tourists.

At least three of the tourists sickened by cholera visited Havana, the AP notes.

The statistics, which were provided to the WHO by Cuban officials, was followed by a statement from the government that by July 3, the disease had been brought under control after it was discovered in the western province of Granma.

According to a statement released by the Cuban government, the outbreak earlier this year was first reported on Jan. 6 and led to 51 confirmed cases before entering a "phase of extinction." No deaths were reported.

It is unclear whether the current cholera outbreak among tourists is isolated to travelers or part of a more significant outbreak being experienced among Cuban residents in Havana.

"If there were to be cholera, the Health Ministry has an action plan with a super-strict system of isolating (infected) people," unconcerned Havana resident Carlos Rodriguez told the AP. "So far I haven’t had any news about there being cholera."